.cover {
    position: fixed;
    top: 0;
    height: 100%;
    width: 100%;
    background-color: rgba(0, 0, 0, .7);
}

.dialog {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    height: 250px;
    width: 450px;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    border-radius: 20px;
    overflow: hidden;
}

.text {
    width: 90%;
    height: 50%;
    text-align: center;
    line-height: 150px;
    font-size: 30px;
}

.btn {
    width: 100%;
    height: 100px;
    background-color: #3688FF;
    text-align: center;
    line-height: 100px;
    font-size: 32px;
    color: #fff;
    /* font-weight: bold; */
}